r=d/t is farmula of speed or uniform speed and its si unit is m/s.
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Distance = time * average speed (velocity) Average speed = Distance/time
to measure the average speed of a car for instince you must use the following formula SPEED= distance divided by time
If n answers are given in t seconds then the average speed of answer is n/t answers per second. t could be a longer time interval, if appropriate.
The formula for calculating average speed is: Average speed = Total distance / Total time Where: Total distance is the total distance traveled in a certain amount of time. Total time is the total amount of time it takes to travel the total distance. For example, if you travel 100 miles in 2 hours, your average speed would be 50 miles per hour. Average speed = 100 miles / 2 hours = 50 miles per hour Average speed can be used to calculate the speed of a car, a bike, a person, or any other object that is moving. It can also be used to calculate the speed of a process, such as the speed at which a computer program is running. Here are some examples of how average speed can be used: A driver wants to know how long it will take to travel from one city to another. They can use the average speed of their car to calculate the travel time. A runner wants to know how fast they are running. They can use a stopwatch to measure their time over a certain distance, and then use the average speed formula to calculate their speed. A company wants to know how long it takes to produce a certain number of products. They can use the average speed of their production line to calculate the production time. Average speed is a simple but useful tool that can be used to measure the speed of objects and processes.
If it accelerates from 75 m/s to 145 m/s at a uniform rate, then its average speed duringthe acceleration is 0.5(145+75) = 110 m/s.Distance covered in 15 sec at average speed of 110 m/s = (15 x 110) = 1,650 m = 1.65 km.